Long term radiation damages the cameras on the ISS. Also, astronauts occasionally see flashes of light as heavy ions or charged particles crash through their skull and fire off photo receptor cells in their eyes despite being closed.
Computers at a soviet train station would randomly bug out and no one knew why. One guy eventually traced it to when livestock was being brought in from Ukraine, where Chernobyl left the cows with so much radiation they could flip bits.
The Grand Canyon Museum had three buckets of radioactive uranium ore on display for 18 years, and only found out when a kid was goofing around with a Geiger counter.
Concorde flew so high passengers received twice the dose of radiation from flying in a conventional aircraft, which was believed to increase cancer risk. The flight deck contained a radiometer so they could descend in case of a solar storm.
Quaker Oats fed radioactive milk and oatmeal to unsuspecting special needs kids under the guise of a science club in order to find out how beneficial certain nutrients were in their oats.
Animal life in Chernobyl is thriving, not because the radiation is gone, there’s still a lot of it, but because there’s barely any humans living in that area.
Firefighters responding to the Chernobyl nuclear accident described their experiences of the radiation as “tasting like metal”, and feeling a sensation similar to that of pins and needles all over their faces.
U.S. flight attendants have higher rates of breast cancer, uterine cancer, gastrointestinal cancer, thyroid cancer, and cervical cancer, when compared with the general public, likely due to regular exposure to cosmic ionizing radiation.
In the 1900s, Radithor was marketed as an energy drink, but was really just distilled water with radium in it. When the first person died of the radiation poisoning, he had to be buried in a lead coffin. His body was still radioactive when he was disinterred years later.
After WWII plants were bombarded with radiation to produce useful mutations known as Atomic Gardening which resulted in todays peppermint and red grapefruit.
Radithor, a health drink in the 1920s, contained radium and slowly killed its customers. But it didn’t cause a public health crisis because it could only be afforded by rich people (unlike cheaper, safer knockoffs).